Sept. 30 (UPI) -- South Korean girl group Le Sserafim takes the stage in a new America's Got Talent Music Room segment.

In the video released Monday, the K-pop stars perform their song "Perfect Night" and tease new music for October.

"Perfect Night" is an English-language song originally recorded as a promotional single for the video game Overwatch 2. That collaboration was released in 2023.

In an interview with AGT, Le Sserafim said performing on the NBC singing competition series Sept. 10 was a "surreal" experience.

"Growing up in the [United] States, I watched this show all the time. So to perform tonight was insane. I feel like I'm going to throw up," Yunjin said.